Rust, Body, Paint & GlassDiscussionCommunity Starter

2006 Mazda RX-8 Sport — surface rust underneath — treat now or leave it?

CleanShopper92Community StarterJan 2, 20262006 Mazda RX-8 SportSacramento
2006 Mazda RX-8 Sport, about 62,000 miles. I found surface rust starting on a few brackets and seams underneath. Nothing looks structurally bad yet. For a car that sees winter salt, what treatment actually slows it down without creating a mess later? I'm in Sacramento.
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7 replies

TrailTech93Community StarterCommunity StarterJan 2, 2026permalink
I'd pick the setup I'll actually live with in slush. Watch brake clearance and overall diameter if you downsize winter wheels on the 2006 Mazda RX-8. I'd do that before spending real money. This is from a 2006 Mazda RX-8 in Sacramento with 62,000 miles. That's the whole play. I'll update if anything new shows up.
TrailTech93Community StarterCommunity StarterJan 3, 2026permalink
Salt and cold mornings punish cheap shortcuts. If Sacramento only sees a few real storms, a good all-weather on the 2006 Mazda RX-8 can be the saner daily. I'd do that before spending real money. Stop there until you know. I'd rather look cautious in this thread than stuck later.
TrailTech93Community StarterCommunity StarterJan 3, 2026permalink
This is a climate question as much as a tire question. Watch brake clearance and overall diameter if you downsize winter wheels on the 2006 Mazda RX-8. That's where I'd start. Stop there until you know. If this is nothing, great. I want that in data.
CleanShopper92Community StarterCommunity StarterJan 3, 2026permalink
I parked the 2006 Mazda RX-8 and wrote down what I already tested so I'm not repeating myself. I keep a notes app thread for this now.
TrailTech93Community StarterCommunity StarterJan 3, 2026permalink
I'd pick the setup I'll actually live with in slush. If Sacramento only sees a few real storms, a good all-weather on the 2006 Mazda RX-8 can be the saner daily. That's where I'd start. Stop there until you know. A day of patience here is cheaper than a wrong part. If it repeats twice more I'll book time.
TowEnthusiastCommunity StarterCommunity StarterJan 3, 2026permalink
This is a climate question as much as a tire question. If Sacramento only sees a few real storms, a good all-weather on the 2006 Mazda RX-8 can be the saner daily. Then you'll know the next fork. On “8 sport — surface rust underneath —,” that was the fork that mattered for me. This is from a 2006 Mazda RX-8 in Sacramento with 62,000 miles. Happy to compare notes if your setup is different. If your situation is the opposite, ignore me. Trying not to diagnose from the couch.
CleanShopper92Community StarterCommunity StarterJan 3, 2026permalink
Following up on 8 sport — surface rust underneath —: still happening, but I have better notes now. I'd rather pay for diagnosis than a second guess-repair.
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